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Finding the Fourth Proportional to 3,188,103,626,515, 4,782,155,439,772.30 and 3,188,103,626,515

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Solution

The fourth proportional to 3,188,103,626,515, 4,782,155,439,772.30 and 3,188,103,626,515 is: 4,782,155,439,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188,103,626,515 : 4,782,155,439,772.30 = 3,188,103,626,515 : x
  2. Step 2: Convert to fraction form
    3,188,103,626,515/4,782,155,439,772.30 = 3,188,103,626,515/x
  3. Step 3: Cross multiply
    3,188,103,626,515x = 4,782,155,439,772.30 × 3,188,103,626,515
  4. Step 4: Simplify right side
    3,188,103,626,515x = 15,246,007,100,096,504,458,641,408
  5. Step 5: Solve for x
    x = 15,246,007,100,096,504,458,641,408/3,188,103,626,515
  6. Step 6: Final answer
    x = 4,782,155,439,772.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.